18434149141 has 2 divisors, whose sum is σ = 18434149142. Its totient is φ = 18434149140.

The previous prime is 18434149099. The next prime is 18434149147. The reversal of 18434149141 is 14194143481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17140308241 + 1293840900 = 130921^2 + 35970^2 .

It is a cyclic number.

It is not a de Polignac number, because 18434149141 - 2¹⁷ = 18434018069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18434149094 and 18434149103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18434149147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9217074570 + 9217074571.

It is an arithmetic number, because the mean of its divisors is an integer number (9217074571).

Almost surely, 2^18434149141 is an apocalyptic number.

It is an amenable number.

18434149141 is a deficient number, since it is larger than the sum of its proper divisors (1).

18434149141 is an equidigital number, since it uses as much as digits as its factorization.

18434149141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 40.

The spelling of 18434149141 in words is "eighteen billion, four hundred thirty-four million, one hundred forty-nine thousand, one hundred forty-one".